Originally Posted by Jakub Hyzyk
Nice project! I'm considering doing the same, can you tell me how well these cheap drivers are holding up?
Well, it's about 2 years in for me now...
The surrounds were a concern to me due to how much they softened over the first week or two. They seem to have settled in and there are no further visible or tactile changes to the material.
The surround is butyl and therefore soft and vulnerable to rips and tears, but there is a high lip of plastic around it for protection. My cats have not managed to damage them yet, even after climbing the plastic lip with their claws once or twice. The cone is easy to clean, and easy to paint after. I used a Krylon plastic paint and it sticks very well with no additional primer.
During the past 2 years they have been repeatedly beat on using subsonic frequencies. I use tone generators, bass boosted songs, the intro to EOT, WOW pod scene and, of course, the 2015 Bass Demo Disc
etc. They just soak it up and giggle. I run a very heavy house curve, combined with a large negative high shelf... especially on those. I have never heard any distress noises even during testing at what I consider very high levels, and distortion seems to be low. I've tried the cluster wired to 4 ohms and 8 ohms. I prefer 8 ohms because it seems smoother somehow
These have only ever accidentally seen a full-strength signal above about 30- 40 hz. They give (to me) an obscene amount of midbass, but I needed subs. I find the midbass coming from the front of the room to be much more natural, so the UXLs are doing the heavy lifting there. At the moment, the 12s focus is really 30hz and below. The array really grips the room at 13 hz, with rapidly diminishing returns under that. I have no impressions of the midbass other than "loud".
I don't tend to listen very loud, apparently. I have a conservative limiter set on these for 750W @ 8 ohm. I have only tickled that limiter once or twice during testing. When I did, there were no bad noises coming from the subs, but I don't know what kind of power they can really take. I've seen pretty impressive excursion out of them, but I don't know how to measure that, and I'm not willing to kill one "for science", especially when I'm not sure whether I would really learn anything.